The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 1996
Filed:
Apr. 25, 1995
Applicant:
Inventors:
Sunggyu Lee, Akron, OH (US);
Ramesh Rengarajan, Singapore, SG;
Assignee:
The University of Akron, Akron, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
525322 ; 525312 ; 525302 ; 525301 ; 525309 ; 525310 ; 525285 ; 525315 ; 525313 ; 525289 ; 525290 ; 525297 ; 525296 ; 525319 ; 525317 ; 525461 ; 525445 ; 525426 ; 525455 ; 525 59 ;
Abstract
Grafted polymer particles are prepared by a free-radical addition polymerization mechanism using a flame produced by igniting a mixture of a combustible gas and an oxidant to heat at least a portion of the surface of a solid polymer particle to produce free-radicals thereon. At least one polymerizable ethylenically unsaturated monomer is contacted and reacted with the free-radicals formed on the surface of the polymer to form a graft thereon.